Field of View Calculator

Use this calculator to test how deep sky targets will appear your equipment.

To bring up a field of view, select the telescope with the left-hand drop-down menu, then select the eyepiece or camera with the right-hand drop-down menu. Then click on 'Objects menu' to choose the object you wish to view. Finally, hit submit to generate the view. If your equipment is not in the lists, you can enter its details in the relevant text boxes.

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If you are currently deciding which telescope to buy, take a look at our equipment review section.

More tips and advice are available for newcomers in our beginners' section.

Subscribe to BBC Sky at Night Magazine in print or digital for up to date advice and guides to practical astronomy, and reviews of the latest kit.

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Provided by David Campbell

Authors

Iain Todd, BBC Sky at Night Magazine
Iain ToddScience journalist

Iain Todd is BBC Sky at Night Magazine's Staff Writer. He fell in love with the night sky when he caught his first glimpse of Orion, aged 10.

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